Narrow Linewidth Tunable DFB Laser Array Integrated with Optical Feedback Planar Lightwave Circuit (PLC)

Hiroyuki Ishii, Naoki Fujiwara, Kei Watanabe, Shigeru Kanazawa, Mikitaka Itoh, Hirokazu Takenouchi, Yutaka Miyamoto, Keisuke Kasai, Masataka Nakazawa

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

A tunable distributed feedback (DFB) laser array integrated with a silica-based external optical feedback planar lightwave circuit is proposed and developed. The laser does not have high-resolution optical filters, and we can tune the wavelength over the entire C-band simply via laser selection and temperature control. The spectral linewidth is successfully reduced thanks to the optical feedback effect. Narrow linewidths of less than 10 kHz are obtained over the entire C-band.

Original languageEnglish
Article number7896522
JournalIEEE Journal of Selected Topics in Quantum Electronics
Volume23
Issue number6
DOIs
Publication statusPublished - 2017 Nov 1

Keywords

  • Semiconductor lasers
  • distributed feedback lasers
  • optical feedback
  • optical fiber communications
  • optical transmitters

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

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